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Page

SAFETY PRECAUTION FOR SERVICE MANUAL ...........................................................................................................  2
IMPORTANT SERVICE NOTES (FOR UK ONLY) ............................................................................................................  3
SPECIFICATIONS .............................................................................................................................................................  3
NAMES OF PARTS ...........................................................................................................................................................  4
OPERATION MANUAL ......................................................................................................................................................  6
DISASSEMBLY ..................................................................................................................................................................  7
REMOVING AND REINSTALLING THE MAIN PARTS .....................................................................................................  9
ADJUSTMENT .................................................................................................................................................................. 10
NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................... 12
BLOCK DIAGRAM ............................................................................................................................................................ 13
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD .............................................................................................. 16
WAVEFORMS OF CD CIRCUIT ....................................................................................................................................... 30
TROUBLESHOOTING (CD CHANGER CONTROL / CD SECTION) ............................................................................... 31
FUNCTION TABLE OF IC ................................................................................................................................................  35
FL DISPLAY ...................................................................................................................................................................... 41
WIRING OF PRIMARILY SUPPLY LEADS (FOR UK ONLY) .........................................................................................  41
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING METHOD (FOR UK ONLY)

• In the interests of user-safety the set should be restored to its

original condition and only parts identical to those specified be
used.

 

Recording and playback of any material may require consent
which SHARP is unable to give. Please refer particularly to the
provisions of Copyright Act 1956, the Dramatic and Musical
Performers Protection Act 1956, the Performers Protection Acts
1963 and 1972 and to any subsequent statutory enactments and
orders.

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The AEL (Accessible Emission Level) of Laser Power Output
for this model is specified to be lower than Class I Requirements.
However, the following precautions must be observed during
servicing to protect your eyes against exposure to the laser
beam.

(1) When the cabinet has been removed, the power is turned

on without a compact disc, and the Pickup is on a position
outer than the lead-in position, the Laser will light for several
seconds to detect a disc. Do not look into the Pickup Lens.

(2) The Laser Power Output of the Pickup inside the unit and

replacement service parts have already been adjusted prior
to shipping.

(3) No adjustment to the Laser Power should be attempted

when replacing or servicing the Pickup.

(4) Under no circumstances look directly into the Pickup Lens

at any time.

(5) CAUTION - Use of controls or adjustments, or performance

of procedures other than those specified herein may result
in hazardous radiation exposure.

CAUTION-INVISIBLE  LASER  RADIATION  WHEN  OPEN.  DO  NOT  STARE  INTO 
BEAM  OR  VIEW  DIRECTLY  WITH  OPTICAL  INSTRUMENTS.

VARNING-OSYNLIG  LASERSTRALNING  NAR  DENNA  DEL  AR  OPPNAD.  STIRRA
EJ  IN  I  STRALEN  OCH  BETRAKTA  EJ  STRALEN   MED  OPTISKA  INSTRUMENT.

ADVERSEL-USYNLIG  LASERSTRALING  VED  ABNING.  SE  IKKE  IND  I 
STRALEN-HELLER  IKKE  MED  OPTISKE  INSTRUMENTER.

VARO!  AVATTAESSA  OLET  ALTTIINA  NAKYMATON  LASERSATEILYLLE.
ALA  TUIJOTA  SATEESEEN  ALAKA  KATSO  SITA  OPTISEN  LAITTEEN  LAPI.

VARNING-OSYNLIG  LASERSTRALNING  NAR  DENNA  DEL  AR  OPPNAD.
STIRRA  EJ IN  I  STRALEN  OCH  BETRAKTA  EJ  STRALEN  GENOM  OPTISKT  
INSTRUMENT.
ADVERSEL-USYNLIG  LASERSTRALING  NAR  DEKSEL  APNES.  STIRR IKKE  
INN  I  STRALEN  ELLER  SE  DIREKTE  MED  OPTISKE  INSTRUMENTER.

Laser Diode Properties

Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW

LASER KLASSE 1

LUOKAN 1 LASERLAITE

KLASS 1 LASERAPPARAT

VARNING-OSYNLIG LASERSTRÅNING NÄR DENNA DEL ÄR
ÖPPNAD. STIRRA EJ IN I STRÅLEN OCH BETRAKTA EJ STRÅLEN
MED OPTISKA INSTRUMENT.

VARO! AVATTAESSA OLET ALTTIINA NÄKYMÄTÖN
LASERSÄTEILYLLE.
ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ OPTISEN
LAITTEEN LÄPI.
VARNING-OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR
ÖPPNAD. STIRRA EJ IN I STRÅLEN OCH BETRAKTA EJ STRÅLEN
GENOM OPTISKT INSTRUMENT.

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FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.

Before returning the unit to the customer after completion of a
repair or adjustment it is necessary for the following withstand
voltage test to be applied to ensure the unit is safe for the
customer to use.
Setting of Withstanding Voltage Tester and set.

Set name

set value

Withstanding Voltage Tester

Test voltage

4,240 VPEAK
3,000 VRMS

Set time

6 secs

Set current(Cutoff current)

4 mA

Unit

Judgment

OK: The “GOOD” lamp lights.
NG: The “NG” lamp lights and the buzzor sounds.

SHORT-CIRCUIT
AC POWER 
SUPPLY CORD

CONNECT THE PROBE
TO GND TERMINAL
OF PHONO TERMINAL 

 PROBE

AC

UNIT

WITHSTANDING
VOLTAGE TESTER

+

-

OUT

OF CHASSIS

SCREW

CHASSIS
SCREW

AC 230 V, 50 Hz

65 W

Width; 270 mm (10-5/8")
Height; 300mm (11-13/16")
Depth; 359.5mm (14-3/16")

4.8 kg (10.6 lbs.)

PMPO; 68 W

MPO; 34 W (17 W + 17 W)
(DIN 45 324)
RMS; 20 W (10 W + 10 W)
(DIN 45 324)

MPO; 34 W (17 W + 17 W) (10 % T.H.D.)

RMS; 20 W (10 W + 10 W) (10 % T.H.D.)

Speakers; 8 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)

VIDEO/AUX (audio signal);
245 mV/47 kohms

FM; 87.5 - 108 MHz
AM; 522 - 1,620 kHz

3-disc multi-play compact disc player

Non-contact, 3-beam semi-con-ductor
laser pickup

1-bit D/A converter

20 - 20,000 Hz

90 dB (1 kHz)

50 - 14,000 Hz (Normal tape)

55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/playback)

0.25 % (DIN 45 511)

0.15 % (WRMS)

100 mm (4") full range speaker

Maximum input power: 20 W
Impedance:

8 ohms

Width; 180 mm (7-1/8")
Height; 300 mm (11-13/16")
Depth; 204 mm (8")

2.1 kg (4.6 lbs.)/each

Specifications for this model are subject to change without prior
notice.

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    Front Panel

MEMORY ST

kHz
MHz

1

2

3

REC

SLEEP

X-BASS